He remembers Bellatrix, a bit. The last time they'd seen each other, they'd been no more than ten, of course. Some family friendly holiday party, when his mother had still been around to drag her brutally eloquent but terminally unsocial husband to that kind of thing.

He's fairly sure Bellatrix kicked him soundly in the knee for pulling a purple ribbon out of her hair.

In any case, Lucius is prepared to pretend for the length of this tour of Hogwarts Castle for new transfer student Bellatrix Black, fresh off four years at Beauxbatons, that he doesn't remember her even a bit. And truthfully, he thinks in that moment when their eyes meet in Dumbledore's office, if he hadn't known her name ahead of time who she was, he can't say he would have recognized her.

He only manages to drag his eyes from her slim fingers straightening her new green Slytherin tie by the headmaster clearing his throat. He smiles. "We can begin with the classrooms and the library," he tells her.